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Science 5 December 1997:
Vol. 278. no. 5344, pp. 1758 - 1765
DOI: 10.1126/science.278.5344.1758
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Reports

Results from the Mars Pathfinder Camera

P. H. Smith, * J. F. Bell III, N. T. Bridges, D. T. Britt, L. Gaddis, F. Gliem, R. Greeley, H. U. Keller, K. E. Herkenhoff, S. Hviid, R. Jaumann, J. R. Johnson, R. L. Kirk, M. Lemmon, J. N. Maki, M. C. Malin, S. L. Murchie, J. Oberst, T. J. Parker, R. J. Reid, P. Rueffer, R. Sablotny, L. A. Soderblom, C. Stoker, R. Sullivan, N. Thomas, M. G. Tomasko, W. Ward, E. Wegryn

Images of the martian surface returned by the Imager for Mars Pathfinder (IMP) show a complex surface of ridges and troughs covered by rocks that have been transported and modified by fluvial, aeolian, and impact processes. Analysis of the spectral signatures in the scene (at 440- to 1000-nanometer wavelength) reveal three types of rock and four classes of soil. Upward-looking IMP images of the predawn sky show thin, bluish clouds that probably represent water ice forming on local atmospheric haze (opacity ~0.5). Haze particles are about 1 micrometer in radius and the water vapor column abundance is about 10 precipitable micrometers.

P. H. Smith, D. T. Britt, M. Lemmon, R. J. Reid, M. G. Tomasko, E. Wegryn, Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA.
J. F. Bell III and R. Sullivan, Cornell University, Ithaca , NY 14853, USA.
N. T. Bridges, K. E. Herkenhoff, J. N. Maki, T. J. Parker, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
L. Gaddis, J. R. Johnson, R. L. Kirk, L. A. Soderblom, W. Ward, U.S. Geological Survey, Flagstaff, AZ 86001, USA.
F. Gliem and P. Rueffer, Technical University of Braunschweig, 38106 Braunschweig, Germany.
R. Greeley, Arizona State University, Tempe, AZ 85287, USA.
H. U. Keller, R. Sablotny, N. Thomas, Max Planck Institute for Aeronomy, Kathenburg-Lindau, Germany.
S. Hviid, Orsted Laboratory, Niels Bohr Institute for Astronomy, Physics, and Geophysics, Copenhagen University, 2100 Copenhagen Ø, Denmark.
R. Jaumann and J. Oberst, DLR, Berlin, Germany.
M. C. Malin, Malin Space Science Systems, San Diego, CA 92191, USA.
S. L. Murchie, Applied Physics Laboratory, Johns Hopkins University, Baltimore, MD 21218, USA.
C. Stoker, NASA Ames Research Center, Moffett Field, CA 94035, USA.
*   To whom correspondence should be addressed. E-mail: psmith{at}lpl.arizona.edu

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The Mars Pathfinder Atmospheric Structure Investigation/Meteorology (ASI/MET) Experiment.
J. T. Schofield, J. R. Barnes, D. Crisp, R. M. Haberle, S. Larsen, J. A. Magalhães, J. R. Murphy, A. Seiff, and G. Wilson (1997)
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Magnetic Properties Experiments on the Mars Pathfinder Lander: Preliminary Results.
S. F. Hviid, M. B. Madsen, H. P. Gunnlaugsson, W. Goetz, J. M. Knudsen, R. B. Hargraves, P. Smith, D. Britt, A. R. Dinesen, C. T. Mogensen, et al. (1997)
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